October Weather in Rio Vista, United States

Last updated: June 24, 2025

In October, the average temperature in Rio Vista, United States is a comfortable 19°C (66°F). Temperatures can vary significantly, dipping to a minimum of 6°C (42°F) and soaring up to a maximum of 38°C (101°F). Expect approximately 31 mm (1.2 in) of precipitation over the course of 2 days, and enjoy a moderate average humidity level of 65%.

October Temperature in Rio Vista

In October in Rio Vista, the average temperature is 19°C (66°F). Maximum can reach 38°C (101°F) and minimum can be as low as 6°C (42°F). Travelers should be prepared for a range of temperatures, from warm to cool, and pack accordingly.

October Weather in Rio Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Rio Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Vista, October typically has an average temperature of 19°C (66°F), with highs reaching up to 38°C (101°F) and lows dropping to around 6°C (42°F).

Data source: Temperature data for Rio Vista generated using information from the Copernicus Climate Change Service.

October Precipitation in Rio Vista

In Rio Vista in October, the precipitation amount is 31 mm (1.2 in) over a span of 2 days.

October Precipitation Trends in Rio Vista

The chart displays monthly precipitation patterns in Rio Vista, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Rio Vista, October typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Rio Vista

In Rio Vista in October humidity is 65%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making outdoor activities refreshing but slightly sticky, so it's advisable to stay hydrated and take breaks in shaded areas while exploring.

October Average Humidity in Rio Vista

This chart illustrates the average monthly humidity levels in Rio Vista, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Rio Vista is approximately 65%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Rio Vista

In Rio Vista in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Rio Vista, you can refer to this Hourly UV Index in Rio Vista.

Maximum UV Index Levels in Rio Vista for October

The chart shows the monthly maximum UV Index (UVI) for Rio Vista in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Rio Vista typically reaches 6, which falls under the high exposure category.

Data source: Rio Vista October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in Rio Vista Compares to Other Months

Weather in Rio Vista varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Rio Vista, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rio Vista, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	116 mm (4.6 inches)	84%	moderate
February Weather	12°C (53°F)	99 mm (3.9 inches)	84%	moderate
March Weather	13°C (56°F)	76 mm (3.0 inches)	83%	high
April Weather	17°C (62°F)	33 mm (1.3 inches)	81%	very high
May Weather	19°C (67°F)	16 mm (0.6 inches)	74%	very high
June Weather	23°C (73°F)	2 mm (0.1 inches)	64%	extreme
July Weather	23°C (74°F)	0 mm (0.0 inches)	44%	extreme
August Weather	23°C (73°F)	0 mm (0.0 inches)	36%	very high
September Weather	22°C (72°F)	1 mm (0.0 inches)	44%	very high
October Weather	19°C (66°F)	31 mm (1.2 inches)	65%	high
November Weather	13°C (56°F)	40 mm (1.6 inches)	84%	moderate
December Weather	10°C (50°F)	90 mm (3.5 inches)	83%	moderate